Coal gasification system and coal gasification method

摘要

Disclosed are a coal gasification system and a coal gasification method, comprising a drying apparatus which turns subbituminous coal or brown coal into moisture-regulated coal by drying until same contain a specified moisture content; and a coal gasification reaction furnace which produces at least hydrogen gas and carbon monoxide gas by burning the moisture-regulated coal. The specified moisture content is set to a quantity such that when the moisture vapour emitted from the moisture-regulated coal and tar are chemically reacted, the tar does not stick inside through holes.